.book_rec{
	position: absolute;
	width: 300px;
	height: 800px;
	opacity: 0;
	background-color: aqua;
	left: 1400px;
	top: 120px;
	font-weight: 100px;
}
.switch_bar{
	position: absolute;
	width: 100%;
	height: 50px;
}
.hot_bt{
	position: absolute;
	width: 100px;
	height: 50px;
	font-size: 26px;
	background-color: DarkGray;        /* 颜色可调 */
	border: thin;
	outline: none;
}
.new_bt{
	position: absolute;
	width: 100px;
	height: 50px;
	left: 100px;
	font-size: 26px;
	background-color: LightGrey;        /* 颜色可调 */
	border: thin;
	outline: none;
}
.rec_bt{
	position: absolute;
	width: 100px;
	height: 50px;
	left: 200px;
	font-size: 26px;
	background-color: LightGrey;        /* 颜色可调 */
	border: thin;
	outline: none;
}
.hot_bt:hover{
	cursor: pointer;
	opacity: 1;
}
.new_bt:hover{
	cursor: pointer;
	opacity: 1;
}
.rec_bt:hover{
	cursor: pointer;
	opacity: 1;
}
.hot_content{
	position: absolute;
	width: 100%;
	height: 750px;
	top: 50px;
	background-color: DarkGray;        /* 颜色可调 */
}
.new_content{
	position: absolute;
	width: 100%;
	height: 750px;
	top: 50px;
	opacity: 0;
	background-color: DarkGray;        /* 颜色可调 */
	display: none;
}
.rec_content{
	position: absolute;
	width: 100%;
	height: 750px;
	top: 50px;
	opacity: 0;
	background-color: DarkGray;        /* 颜色可调 */
	display: none;
}

.content p:hover{
	color: black;
}

